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Financing Arrangements, Residential Mortgage Loans (Details) - Deutsche Bank AG, Cayman Islands Branch - USD ($) | 6 Months Ended | 12 Months Ended
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Jun. 30, 2018 | Dec. 31, 2017
Pool of Distressed Residential Mortgage Loans |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Maximum repurchase amount | $ 100,000,000 |
Principal amount | 150,000,000 |
Repurchase agreement, amount outstanding | $ 154,600,000 | $ 123,600,000
Repurchase agreement, effective interest rate | 4.49% | 4.05%
Pool of Distressed Residential Mortgage Loans | LIBOR |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Interest rate, basis spread | 2.40% | 2.50%
Residential Mortgage |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Maximum repurchase amount | $ 25,000,000 |
Principal amount | 25,000,000 | $ 26,100,000
Repurchase agreement, amount outstanding | $ 37,900,000 |
Residential Mortgage | LIBOR |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Interest rate, basis spread | 3.50% |
Repurchase agreement, effective interest rate | 5.59% | 5.05%

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- Definition The total amount of repossession that is available under the repurchase agreement. + References No definition available. + Details
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- Definition Assets Sold Under Agreements to Repurchase, Maximum Uncommitted Repurchase Amount + References No definition available. + Details
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- Definition Interest rate on the amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(i)(A)(ii)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(i)(A)(ii)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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